Tikvah
Editors’ Pick

February 11, 2021

Did Jews’ Genes Protect Them from the Black Plague?

A more compelling explanation than handwashing or Passover cleaning.

As the Black Death swept through Europe in the mid-14th century, many Christians, observing that their Jewish neighbors tended to die at less alarming rates, decided that the Jews were to blame. This conclusion resulted in some of the Middle Ages’ severest outbreaks of anti-Semitic violence. Over the last 200 years, historians have variously pinned the difference in mortality to better hygiene (perhaps related to handwashing and other halakhic observances), more fastidious care for the sick, kashrut, and Passover cleaning. Declaring these explanations scientifically untenable, Kathryn Glatter and Paul Finkelman suggest a different one:

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